The Scottish star's signature ballad ‘Someone You Loved’ alone racked up 228 million streams.
In a wonderfully surreal episode, Eilish sang her hits ‘Ocean Eyes’ and ‘Bad Guy’, plus a cover of The Beatles‘ ‘I Will’ performed on a ukulele.
The awards ceremony takes place at The Steve Jobs Theater near Apple’s head office in Cupertino, California, on 4 December.
Fans can expect the new song to drop on Wednesday, 13 November.
The young star's set was recorded direct-to-acetate on the premises, with a crew of white-coated engineers overseeing the operation in view of the audience.